package/utils/busybox/config/networking/udhcp/Config.in

   1 # DO NOT EDIT. This file is generated from Config.src
   2 #
   3 # For a description of the syntax of this configuration file,
   4 # see scripts/kbuild/config-language.txt.
   5 #
   6
   7 config BUSYBOX_CONFIG_UDHCPC6
   8         bool "udhcpc6 (DHCPv6 client, EXPERIMENTAL)"
   9         default BUSYBOX_DEFAULT_UDHCPC6  # not yet ready
  10         depends on BUSYBOX_CONFIG_FEATURE_IPV6
  11         help
  12           udhcpc6 is a DHCPv6 client
  13
  14 config BUSYBOX_CONFIG_FEATURE_UDHCPC6_RFC3646
  15         bool "Support RFC 3646 (DNS server and search list)"
  16         default BUSYBOX_DEFAULT_FEATURE_UDHCPC6_RFC3646
  17         depends on BUSYBOX_CONFIG_UDHCPC6
  18         help
  19           List of DNS servers and domain search list can be requested with
  20           "-O dns" and "-O search". If server gives these values,
  21           they will be set in environment variables "dns" and "search".
  22
  23 config BUSYBOX_CONFIG_FEATURE_UDHCPC6_RFC4704
  24         bool "Support RFC 4704 (Client FQDN)"
  25         default BUSYBOX_DEFAULT_FEATURE_UDHCPC6_RFC4704
  26         depends on BUSYBOX_CONFIG_UDHCPC6
  27         help
  28           You can request FQDN to be given by server using "-O fqdn".
  29
  30 config BUSYBOX_CONFIG_FEATURE_UDHCPC6_RFC4833
  31         bool "Support RFC 4833 (Timezones)"
  32         default BUSYBOX_DEFAULT_FEATURE_UDHCPC6_RFC4833
  33         depends on BUSYBOX_CONFIG_UDHCPC6
  34         help
  35           You can request POSIX timezone with "-O tz" and timezone name
  36           with "-O timezone".
  37
  38 config BUSYBOX_CONFIG_UDHCPD
  39         bool "udhcpd (DHCP server)"
  40         default BUSYBOX_DEFAULT_UDHCPD
  41         select BUSYBOX_CONFIG_PLATFORM_LINUX
  42         help
  43           udhcpd is a DHCP server geared primarily toward embedded systems,
  44           while striving to be fully functional and RFC compliant.
  45
  46 config BUSYBOX_CONFIG_FEATURE_UDHCPD_WRITE_LEASES_EARLY
  47         bool "Rewrite the lease file at every new acknowledge"
  48         default BUSYBOX_DEFAULT_FEATURE_UDHCPD_WRITE_LEASES_EARLY
  49         depends on BUSYBOX_CONFIG_UDHCPD
  50         help
  51           If selected, udhcpd will write a new file with leases every
  52           time a new lease has been accepted, thus eliminating the need
  53           to send SIGUSR1 for the initial writing or updating. Any timed
  54           rewriting remains undisturbed.
  55
  56 config BUSYBOX_CONFIG_FEATURE_UDHCPD_BASE_IP_ON_MAC
  57         bool "Select IP address based on client MAC"
  58         default BUSYBOX_DEFAULT_FEATURE_UDHCPD_BASE_IP_ON_MAC
  59         depends on BUSYBOX_CONFIG_UDHCPD
  60         help
  61           If selected, udhcpd will base its selection of IP address to offer
  62           on the client's hardware address. Otherwise udhcpd uses the next
  63           consecutive free address.
  64
  65           This reduces the frequency of IP address changes for clients
  66           which let their lease expire, and makes consecutive DHCPOFFERS
  67           for the same client to (almost always) contain the same
  68           IP address.
  69
  70 config BUSYBOX_CONFIG_DHCPD_LEASES_FILE
  71         string "Absolute path to lease file"
  72         default BUSYBOX_DEFAULT_DHCPD_LEASES_FILE
  73         depends on BUSYBOX_CONFIG_UDHCPD
  74         help
  75           udhcpd stores addresses in a lease file. This is the absolute path
  76           of the file. Normally it is safe to leave it untouched.
  77
  78 config BUSYBOX_CONFIG_DUMPLEASES
  79         bool "dumpleases"
  80         default BUSYBOX_DEFAULT_DUMPLEASES
  81         help
  82           dumpleases displays the leases written out by the udhcpd.
  83           Lease times are stored in the file by time remaining in lease, or
  84           by the absolute time that it expires in seconds from epoch.
  85
  86 config BUSYBOX_CONFIG_DHCPRELAY
  87         bool "dhcprelay"
  88         default BUSYBOX_DEFAULT_DHCPRELAY
  89         help
  90           dhcprelay listens for dhcp requests on one or more interfaces
  91           and forwards these requests to a different interface or dhcp
  92           server.
  93
  94 config BUSYBOX_CONFIG_UDHCPC
  95         bool "udhcpc (DHCP client)"
  96         default BUSYBOX_DEFAULT_UDHCPC
  97         select BUSYBOX_CONFIG_PLATFORM_LINUX
  98         help
  99           udhcpc is a DHCP client geared primarily toward embedded systems,
 100           while striving to be fully functional and RFC compliant.
 101
 102           The udhcp client negotiates a lease with the DHCP server and
 103           runs a script when a lease is obtained or lost.
 104
 105 config BUSYBOX_CONFIG_FEATURE_UDHCPC_ARPING
 106         bool "Verify that the offered address is free, using ARP ping"
 107         default BUSYBOX_DEFAULT_FEATURE_UDHCPC_ARPING
 108         depends on BUSYBOX_CONFIG_UDHCPC
 109         help
 110           If selected, udhcpc will send ARP probes and make sure
 111           the offered address is really not in use by anyone. The client
 112           will DHCPDECLINE the offer if the address is in use,
 113           and restart the discover process.
 114
 115 config BUSYBOX_CONFIG_FEATURE_UDHCPC_SANITIZEOPT
 116         bool "Do not pass malformed host and domain names"
 117         default BUSYBOX_DEFAULT_FEATURE_UDHCPC_SANITIZEOPT
 118         depends on BUSYBOX_CONFIG_UDHCPC
 119         help
 120           If selected, udhcpc will check some options (such as option 12 -
 121           hostname) and if they don't look like valid hostnames
 122           (for example, if they start with dash or contain spaces),
 123           they will be replaced with string "bad" when exporting
 124           to the environment.
 125
 126 config BUSYBOX_CONFIG_UDHCPC_DEFAULT_SCRIPT
 127         string "Absolute path to config script"
 128         default BUSYBOX_DEFAULT_UDHCPC_DEFAULT_SCRIPT
 129         depends on BUSYBOX_CONFIG_UDHCPC
 130         help
 131           This script is called after udhcpc receives an answer. See
 132           examples/udhcp for a working example. Normally it is safe
 133           to leave this untouched.
 134
 135 config BUSYBOX_CONFIG_FEATURE_UDHCP_PORT
 136         bool "Enable '-P port' option for udhcpd and udhcpc"
 137         default BUSYBOX_DEFAULT_FEATURE_UDHCP_PORT
 138         depends on BUSYBOX_CONFIG_UDHCPD || BUSYBOX_CONFIG_UDHCPC
 139         help
 140           At the cost of ~300 bytes, enables -P port option.
 141           This feature is typically not needed.
 142
 143 config BUSYBOX_CONFIG_UDHCP_DEBUG
 144         int "Maximum verbosity level for udhcp applets (0..9)"
 145         default BUSYBOX_DEFAULT_UDHCP_DEBUG
 146         range 0 9
 147         depends on BUSYBOX_CONFIG_UDHCPD || BUSYBOX_CONFIG_UDHCPC || BUSYBOX_CONFIG_DHCPRELAY
 148         help
 149           Verbosity can be increased with multiple -v options.
 150           This option controls how high it can be cranked up.
 151
 152           Bigger values result in bigger code. Levels above 1
 153           are very verbose and useful for debugging only.
 154
 155 config BUSYBOX_CONFIG_FEATURE_UDHCP_RFC3397
 156         bool "Support RFC3397 domain search (experimental)"
 157         default BUSYBOX_DEFAULT_FEATURE_UDHCP_RFC3397
 158         depends on BUSYBOX_CONFIG_UDHCPD || BUSYBOX_CONFIG_UDHCPC
 159         help
 160           If selected, both client and server will support passing of domain
 161           search lists via option 119, specified in RFC 3397,
 162           and SIP servers option 120, specified in RFC 3361.
 163
 164 config BUSYBOX_CONFIG_FEATURE_UDHCP_8021Q
 165         bool "Support 802.1Q VLAN parameters"
 166         default BUSYBOX_DEFAULT_FEATURE_UDHCP_8021Q
 167         depends on BUSYBOX_CONFIG_UDHCPD || BUSYBOX_CONFIG_UDHCPC
 168         help
 169           If selected, both client and server will support passing of VLAN
 170           ID and priority via options 132 and 133 as per 802.1Q.
 171
 172 config BUSYBOX_CONFIG_UDHCPC_SLACK_FOR_BUGGY_SERVERS
 173         int "DHCP options slack buffer size"
 174         default BUSYBOX_DEFAULT_UDHCPC_SLACK_FOR_BUGGY_SERVERS
 175         range 0 924
 176         depends on BUSYBOX_CONFIG_UDHCPD || BUSYBOX_CONFIG_UDHCPC
 177         help
 178           Some buggy DHCP servers send DHCP offer packets with option
 179           field larger than we expect (which might also be considered a
 180           buffer overflow attempt). These packets are normally discarded.
 181           If circumstances beyond your control force you to support such
 182           servers, this may help. The upper limit (924) makes dhcpc accept
 183           even 1500 byte packets (maximum-sized ethernet packets).
 184
 185           This option does not make dhcp[cd] emit non-standard
 186           sized packets.
 187
 188           Known buggy DHCP servers:
 189           3Com OfficeConnect Remote 812 ADSL Router:
 190             seems to confuse maximum allowed UDP packet size with
 191             maximum size of entire IP packet, and sends packets which are
 192             28 bytes too large.
 193           Seednet (ISP) VDSL: sends packets 2 bytes too large.